I have seen many sites implement an articles section on the main site, or as a child board on their forums. It's basically a place where people write articles about a particular subject, or even about random ideas. On-topic subjects could include things like 'Color Theory for Builds', 'Brick Measurement Theory', etc. I really like to read people's opinions, thoughts, and wisdom, so I think that it would be an interesting place to 'chill'.
I considered posting this in suggestions/requests but I thought it would be better suited here. I'd like to see a forum board for more intellectual conversations. I'm not saying there aren't any intellectual conversations in other boards, just that having a board made specifically for these conversations might be a good idea.